The loop error feature offers you three different methods to calculate the total error of a selected loop: normal, absolute, and root mean square. The calculation is performed per loop based on one or more instrument tags belonging to the loop.
The error is measured at several points that you predefine in the Tag Calibration Settings window. The error is calculated at the default point that you define in the Preferences dialog. The loop error is measured relative to the largest tolerance value of all the calibration data for the tags that are included in the loop error calculation.
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To make a valid loop error calculation, make sure that your calibration and calculation have been time stamped on the same day.
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Set the value of the loop error calculation method and the loop calculation point on the Preferences dialog. For details, see Calibration and Maintenance > General (Preferences).
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Define the calibration settings for the selected tags. Tags have their predefined settings which you enter in the Tag Calibration Settings window. When you calculate the loop error of a specific loop you should use the settings to include at least one tag that belongs to the designated loop.
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Enter calibration data for the selected tags in the loop. For details, see Enter Calibration Data.
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Select the required calculation method and perform the actual calculation. For details, see Calculate Loop Errors.
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Generate a loop error report. For details, see Generate Calibration Reports.